Yes I know it's probably none of my business aside from the fact I live in fear of knocking the child over!
The child was 4 last week. He is playing out with his older sibling (7) and a few other children aged between 7 and 10. Our road isn't terribly busy being a cul de sac but it has three roads off it so there are quite a few cars in the evening.
I'm not so concerned about someone snatching him, very unlikely. More likely to be squashed as someone reverses off drive. Lots of parked cars as well which makes it trickier.
His own house is round the corner on a different road. He could actually be anywhere and parents wouldn't know. Presume they are relying on older sibling to watch him. However watched older sibling go into another child's house for about ten mins and leave little bro just riding around on his own. I kept my eye on him!
Aibu and judgey?!